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Professional Standard - Chemical Industry, ??? ?? ??

工業(yè)和信息化部, ??? ?? ??

Group Standards of the People's Republic of China, ??? ?? ??

Universal Oil Products Company?(UOP), ??? ?? ??

中華人民共和國(guó)國(guó)家質(zhì)量監(jiān)督檢驗(yàn)檢疫總局、中國(guó)國(guó)家標(biāo)準(zhǔn)化管理委員會(huì), ??? ?? ??

American Society for Testing and Materials (ASTM), ??? ?? ??

Anhui Provincial Standard of the People's Republic of China, ??? ?? ??





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